[o in order to sail with a well covered skipper all crew must:
Show proof of health insurance
No... skippers liability will cover any injury to the crew.

Pass a basic seamanship course (in case the skipper is incapacitated and the crew must sail the boat to shore)
DUH! don't you make sure your crew can turn the boat around and get you if the conditions are dicey! Otherwise... I am not going out.

pass a swim test
DUH!

be certified in first aid/CPR
Not necessary

wear necessary safety equipment (pfd, helmet, shoes, gloves)
DUH would you take anyone on your boat without the right gear!

know how to operate VHF, Flares, PLB, GPS
DUH... if you need this safety margin for that day ... you betcha I show them how it all works and have them try it!

sign a liability waiver
Waiver's are useless in a court of law.

Pete's right (did I just say that).....we all need to sail singlehanded boats!

No... we all need to use common sense and good seamanship and protect ourselves with liability insurance from expensive disasters.